Home / 387,955.32-581,932.14-107,471.76

Finding the Fourth Proportional to 387,955.32, 581,932.14 and 107,471.76

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Solution

The fourth proportional to 387,955.32, 581,932.14 and 107,471.76 is: 161,207.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,955.32 : 581,932.14 = 107,471.76 : x
  2. Step 2: Convert to fraction form
    387,955.32/581,932.14 = 107,471.76/x
  3. Step 3: Cross multiply
    387,955.32x = 581,932.14 × 107,471.76
  4. Step 4: Simplify right side
    387,955.32x = 62,541,271,286.37
  5. Step 5: Solve for x
    x = 62,541,271,286.37/387,955.32
  6. Step 6: Final answer
    x = 161,207.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.